Machine vibrator



Aug- 30, 1949. E.. F. PETERSON 2,480,603

MACHINE VIBRATOR Filed June 26, 1946 INVENTOR E /7' Pfff/750W ATTORNEY Patented ug. 30, 1949 yUNITED STATES PATENK'I...OFFICELv VIBRATOR t, Edwin'F; Peterson, Kewanee, Ill.

Appliatonsnsea 194s, ssriaiivo'-1t7a44sf 4 claims.' (c1. 25g-px Y My present invention relates torinproveinents in'vibrating mechanisms and m'ore particularly to mechanisms used invconnection withmolding apparatus, although the use thereofis 'not neces-Y sarily confined-to'that art. The primary p i'irposev of this invention is to improve Aupon prior con; structions upon which I haveiled applications for patentv by providing'me'ans for keeping dirt; and sand from yfinding lodgment inside of 'an ap paratus of the type indicated. `AV further object of vthis invention is the provision of a inodeoi at-v tachment of an apparatus of the 'kind indicated such that'the ,parts Vibrated may be caused tol move in either'a'vertic'al or' anhorizontal plane. My invention furtherresides in the combination, construction, and arrangement of parts *illus-A' trated in the accompanying drawings'and, while I have shown therein what is now regarded as the preferred embodim'ent'of this invention and' a modication thereof,v I` desire Athe same vtofl'ce understood as illustrative only and not to be interpreted in a limiting sense. j

In'the drawings annexed heretoand forming" a part hereof, b Fig.v 1 representsta plan View, partly in section,

Hieha'ls'lir is, to be used'may t- :If 'it' is' @be t? tached toal match,y plate, the recessxa will belapfy plied to the edge of the'plate; anda toit win be put through the opening 4b to'tfasten the vibrator tothe plate so that the plate, can be/'vibrated'i'n al vertical direc'ticl'rn )ne'theA other hand, 'if the edge of the plate is put inthe recess 5b, thesecuringfb'oltvwill be passed throughv the opening ,4a. and'v the plate, and the vibrator will then be Se# cured to the plate in a position to cause vibration in"a -horizontal plane'. Ihe lugk 3 may l also be re'ces'secl,l as shown at" 5c and 5d, to forrn shoulders 5e and '5f against which an edge of 'the head 'of' the attaching Abolt may engage to preventturn..

ing of vthe'bolt when tightening upthe nut which4 assists inkh'olding thevibrator attached to' the matchplatelorother structure; j

The body` l is 'prsvidedfwith 'afecten plats' ff which is secured'in position by means yof aboltv'l.'l

A thin washer is placed between thecover-plate 6 land the head ofthe bolt k'L `The yopenings of a vibratingmechanism in'accordanc'e withinyr,

invention; Y

t Fig. 2 represents a side'elevation thereof Fig. 3 represents a transverse sectionsubs'tam' Fig. 5 represents a plan view,'s`imilar 'toFig. 4,

of a modified form of that construction; and

Fig. 6 represents a transversesection of an irnproved -raceway used in this vibrating mechaf' n isr'n, with a metal ball shown. in elevation thereon. 't t j yReference will now be made in "greatendetail to the annexed drawings fora more completedee scription of this invention. The body l has a screw-threaded opening 2 for attachment of an air hose, and this opening has an extension 2a leading to a ball raceway in the interior of the body. At the opposite side of the body I is an attachment lug 3 provided with two holes 4a and 4b arranged at a right angle to each other and intended to receive a bolt by means of which this mechanism is to be attached to the part to be vibrated, as, for example, a match plate. As shown at 5a and 5b, two faces of the attaching lug 3 are recessed to form an angle in which an edge of the structure upon which this vibrating may be'rused in a single vibrator.

throughthe cover plate is larger than the shank terior of the vibrator. y y opening 2, A2a causes asteel ball I ll to roll around.

of thebolt 'l to permit escapeof air/from' :the in-A onthe, trajcku, positioned within the bodyl, as;

shown clearly injFi'g.3.' In Fig.v 6,I the trackllis shownt'on an enlarged scale and the ball l0 .isf

shown correspondinglyenlarged. The puipose ofv thismgure is to show thatballs of various sizes purposel of yreducing the, number 'of sizes of vibrators which must be manufactured and ,car-

ried vin stock. ,By changing the size of the-ball,v used,` the eiectofthe vibrator can be changed as required, within v ';ert: iin limits. Beyond .thesef limits, vibratorsofother,sizes must be used, but,

this, arrangement very, materially v reducesthe numberfof sizes of vibrators required.

Asshown in Figs. 3,y 4, andr'5, a boss. |v2is formed, onfthe expo-sed face of the cover plate. Within this boss }|2 is a circular groove ,|3. whichmay receive a packing of wool yarn I4, the purpose of which is to prevent dirt and sand from entering the grooves l5 and thereby gaining access to the interior of the vibrator. The inner sections I6 of the grooves or channels I5 may be either in alignment with the outer section-s, as shown in Fig. 4, or at an angle thereto, as shown in Fig. 5. If these are formed as shown in Fig. 5, it is probably true that it will never be necessary to use the wool packing I4, as shown in Fig. 4.

It is clear that the air, entering under pressure through the opening 2, will force the ball I0 to roll around the inside of the raceway Il, and

Thisy air, Aentering the` This is for the it will then escape around the bolt 1 and out through the openings l5 underneath the washer 8. Rolling of the ball l rapidly around the raceway will cause the body I to vibrate, and this vibration will be transmitted to the machine part to which the vibrator is attached.

This disclosure is, in part, a continuation of my prior application, Serial No. 620,119, led October 3, 1945-.

It willi of. course be understood" that theespef. cic description of structure set forth above may be departed from without departing from the; spirit of this invention as disclosed herein, and as dened in the appended claims.

Having now described my inventionLIvLclaim: 15,

l. A vibrator for the purpose indicated comprising a hollow body having one` side open, acover plate for the open side of the body said; cover plate having a boss on its outer face, said boss having, a groove substantially coaxial with, the hollow of; the bodysaid body and cover. plate having an opening therethrough, substantially coaxial with the bodyr opening, a headed' connecting means extending therethrough to hold: 'parts assembled, and' a washer surrounding, the connecting means and located] between the headof the connecting'm'eans and the boss,lthe hole; through; theA cover pla-te being larger than the` diameter of the connecting means whereby to furnis-h a vent from; the interior` of thebody, for alrunder pressure therein, 'a rollable body inA the hollowbody; the boss on the; cover plate having atleastone groove extending outwardly from; the hole through the cover-plate tn allowg escape of air from the interioroff the body, 'the bodyhaving anopeningforv admission ofair under pressure. the last mentioned openingadnntt-ingair substantially tangent-iallyofithei hollow of the' body.

2, A vibrator fort'he purpose indicated 'corn-1 prisin-ga hollow body having vloneV 'side open, a coverv plate forthe open 'si-de of the body, said cover-plate having a; boss on; itsgouter lace, said boss having-a groove substantially coaxial with the hollow' of theA bodysaidfbody and coverplateh-'aving an opening therethrough substantially coaxial withfthebodyopening; a headed connecting lmeans extending therethrough to hold the parts assembled, and; lawasher surroundingthe; connecting means and* locatedfbetween the headI of theconnectingvv means andA the boss, the hole` through the fcover plate being larger 'thanthe'- diameter` ci 'the connecting means whereby to furnisha vent :from the .interior-of the body 'forvair under-pressure thereirnarellablebo'dy-'in theh'ell'ow body, the boss onthe cover` platehaving; a-t .least one groove extending outwardly from the; hole through vthe vcover.A plateto allow` escape' of air from theint'erfion of-"the body, the; body' having an opening for admission Iof Iairunder pressure, theA lastdmentioned opening` admitting air` substantially tangentially. lofi the hollowy of# 4 the body, and the coaxial groove of the boss having a loose packing therein to prevent solid matter from entering the body through'said outwardly extending grooves.

3. A vibrator of the character indicated having a hollow body, a ball rollable therein, a cover plate for an open side of the body, said cover plate having an opening therethrough substantially,` pergendicular td-the body-o the plate, a seeming means in said, opening to connect the cover plate to the body, the opening through the cover plate being somewhat larger than the connecting means to allow escape of air from the interiorof the body around the securing means, thefexposedfface of the cover plate having grooves extending outwardly from the opening through the plate-vvilfiereby.I to vent the air from the interior-of the body, and a covering means for the grooves, said vibrator having means for conveyme air under pressureto thel interior o tlie body, the air. entorinain the dirooiionoitlie mideplane. of; the body;

4". A vibrator for, the purposeI indicatori 39.31- prisins a hollow body 'havineone Side open, cover plate for the 'open 'side off thejborly,l said4 Cover plato having a boss omits 'outer face said boss hai/.ine o groove Substantially ooouialA with. thehsnow of. the body., 'said'bosiu and; ooverqplaie, having an. opening therethrough. Substantially coaxial with the body opening, a, h eadodconnoot-- los., means` extending therethrough to hold. the Rafts, assembled; a Washer, Surrounding the, oon.- n'ectine moans and l'ooatodbetwoen the hoed, of. the. Vooririooiirlg moans and; the boss the. holo through. the @over Pilate. being. larger. 'than the diameter of the., oonneotips .moans whereby. ilo4 furnish a 'ventA from the interiorA of the body for, air undorpressure theroina rollaibl'obody thehollow body, the besson the coi/.eri plato. having at least' one groove extondineoutwardlv .fromthe hole through the cover plate 'to allow escape of., air from the interior ofi'ihebodv, ihebodv having an Vopening for admission of air., under pressure, Athe last meutionodoponing, admittingV air Substantially tangentially 'of' the hollow. ofz'the body, 'and 'an interiorly grooved' liner iitting the hollow boda, the. body. and` liner navos. on air admission opening extending, substantially tans'ontiallv intot'he opening Withinthe. liner.

Env-71Nl F; PETERSON;

REBER'EN GBI? EDI` The following references. are o recordin;theY le of..this.1oatsnit;`

STATES 

